Sst Mim Engl
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Transcript of Sst Mim Engl
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Powder metallurgical injection moulding
MIM Metal Injection Moulding
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MIM freedom of design is our strength
Powder metallurgically produced components are today
utilised in almost all fields of technology. These prod-
ucts distinguish themselves by offering a wide range ofmaterials, vast geometrical freedom of design, very high
precision and suitability for large-volume production.
Powder metallurgical injection moulding (MIM) com-
bines the well-known advantages of sinter materials with
the shaping possibilities of plastic injection moulding
technology.
Based on a lifetimes experience in the field of sintered
metal technology, the MIM method has been successfully
practised by the Schunk Group for more than 10 years.
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Cost-effective for large-volume products
High geometrical degree of difficulty,precision and firmness
Powder metallurgical injection
moulding is a cost-effective manu-
facturing method for large-volume
products. The initial cost of tooling
can be offset when annual quanti-
ties exceed 50,000 parts, although,
in exceptional cases, smaller quan-
tities than this can still be prod-
uced in an economically reasonable
Metal Injection Moulding
compared to other
methods
MIM is primarily used in the manu-
facture of minor and medium sized
components (weight 0.1 to approx.
150 g) with very complex geometry.
Functions, for which several com-
ponents are required in other
manufacturing processes, are com-
bined in one component by means
of the procedure. Undercutting,
break-throughs and threads areproducible. Mechanical processing
is also economised on due to pro-
duction that is close to the final
shape.
manner. MIM is particularly cost
effective when its choice results in
(I) machining and fabrication opera-
tions being reduced or even elimi-
nated, and (II) obviating the need
for design and processing restric-
tions when working with special
alloys.
The mechanical properties of the
MIM components are, with a final
density greater than 96%, compara-
ble to that of conventional steels.
Up to now MIM components are
applied in the fields:
Automotive engineering
Mechanical engineering
Measurement and control technology
Precision engineering
Domestic appliances
Lock and armature industry
Tool engineering
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Form, function, strength
Passenger car ignitionlockDoor lock, lock caps
Adjustment of backrestsDriver bush
Pressure sensor
Casing and lid
This MIM component is used as a
central element for seat adjustment
in passenger cars.
It serves the transmission of power
resulting from the electromotive
adjustment in the narrowest con-
struction space. Schunk MIM-Tech-
nik also developed the jointing
technology required to place the
fixed stop absorption elements.
These MIM components are used in
many European vehicles. Through
the attributes of the MIM material
they ensure a high degree of security
against opening by force and,
through the applied coatings, also
satisfy maximum design and
aesthetic requirements.
The sensor casing with lid is char-
acterised by special magnetically
soft attributes, which become pos-
sible through the use of specially
selected MIM material. By means of
MIM technology these components
can be produced in their final out-
line without post-processing.
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Profile joint
Profile connector
The MIM steel component profile
connector guarantees an extremely
firm clamp-connection of alumini-
um profiles. The special construc-
tion of these components ensures
simple and safe connection of pro-
files, which can again be disconnec-
ted without causing destruction.
This eases assembly, adjustment
and disassembly. The component is
galvanically coated for reasons of
corrosion protection.
MIM components are widely used in
the manufacture of locks. These are
optimal in this market segment in
regard to the warranted security. A
hard (difficult to drill) material that
can only be produced by means of
MIM technology ensures this high-
security requirement.
The readjustment unit of a hand-
brake consists of three MIM com-
ponents. Besides faster assembly of
the handbrake cable, this unit par-
ticularly enables automatic read-
justment in order to compensate
for play. The MIM material and ad-
equate heat treatment assure firm-
ness, expansion and hardness in a
narrow and precisely defined toler-
ance range and the ability neces-sary for power transmission.
Readjustment of handbrakeToothed rack, clamp body and
clamping jaw
Cylinder lockCylinder body, protectionagainst criminal entry
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Approved technology for high demands
The removal of the organic binder
subsequently takes place in a de-
binding process. Through high tem-
perature sintering the residual
porous moulded bodies shrink into
components with the final geome-
trical characteristics. All imaginable
heat and surface treatments, as
applied to conventionally manufac-
tured components, are applicable in
the subsequent finishing processes.
Blending of fine metal powder with
organic binder to a homogeneous
compound is characteristic for the
MIM technology. This compound is,
analogous to plastics processing,
processable on injection moulding
machines. In the injection mould-
ing process, moulded bodies are
manufactured, which already fea-
ture all typical geometrical charac-
teristics of the completed com-
ponent.
The manufacturingprocess
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Multifarious materials can be usedwith Schunk MIM technology prob-
ably including the material that
meets your requirements. A multi-
tude of materials has been devel-
oped and made available in addi-
tion to the traditional MIM materi-
als with iron as a basis and nickel
and carbon as alloying elements.
MIM steels for use in the conven-
tional area; those are among other
things:
unalloyed and low alloyed steels,
rust and acid resistant stainless steels,
high-speed steels.
Their characteristics do unimpor-
tantly differ from the materials that
are meltmetallurgically produced.
With the MIM method you have
practically unlimited possibilities
as far as construction and applica-
tion of material are concerned. The
demonstrated possibilities are only
intended as suggestions for optimal
design of your component.
Our experienced team is gladly
available for questioning and sug-
gestions.
Freedom of design
The procedural possibilities ofSchunk MIM-Technik offer you a
wide diversity of design.
Component weight:
0.1 ... approx. 150 g
Component deviations:
max. 150 mm
Wall thickness: 0.3 ... 12 mm
Tolerances:
0.3 % from the nominal size
0.5 % from the nominal size,
process compatible
Surface finish: Rz 4... 6.3 m
The component construction can
take place according to the design
guideline (VDI-guideline 2006).
We can furthermore use materials,the characteristics of which are
clearly superior to those of conven-
tional materials or which cannot be
processed using conventional tech-
nologies or only with great difficulty.
Those are in particular
highly wear-resistant materials,
highly heat-resistant materials,
magnetically soft materials.
The company Schunk MIM Technikoffers self-developed binder systems
and produces the materials on its
own premises. Thus we are inde-
pendent of the market and in the
position to produce and test new
materials for you (corresponding to
your requirements).
Design with us from the start
Wide range of materials
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Schunk Sintermetalltechnik GmbH
Rosstrappenstrasse 62
D-06502 Thale
Germany
Phone +49 (39 47) 7 28 00
Fax +49 (39 47) 7 28 88
e-Mail: [email protected]
www.thale-sintermetall.de
www.schunk-group.com
Schunk Sintermetalltechnik GmbH
Rodheimer Strasse 59
D-35452 Heuchelheim
Germany
Phone +49 (6 41) 6 08-0
Fax +49 (6 41) 6 08-14 88
e-Mail: [email protected]
www.sintermetalltechnik.de
www.schunk-group.com
Schunk MIM-TechnikCorporate association of the MIM-facilities of Schunk Sintermetalltechnik